Jean lamm



(No Model.)

J. LAMM. REVOLVER CYLINDER.

Patented Iuly 3, 1894.

UNirnD Srarns arnNT Ormea,

JEAN LAMM, OF KESSELSTADT, ASSIGNOR TO MAX HASSELMANN, OF

` FRANKFORT-ON-THE-WIAIN, GERMANY.

REVOLVER-CYLINDER.

SPECIFICATION forming part of Letters Patent No. 522,472, dated July 3,1894. Application filed September 20, 1893. Serial No. 485,984. (Nomodel.)

To all whom it may concern:

Beit known that I, JEAN LAMM, a subject of the Emperor of Germany,residing at Kesselstadt, near I'Iauau, Germany, have invented certainnew and useful Improvements in Revolvers, of which the following is aspecification.

The object of my invention is to provide a new and improved revolver,which can be reloaded very rapidly, by inserting a charged cylinder, inplace of the discharged one, into the same.

The invention consists in a revolver constructed with a removable drumor cylinder havlng a number of bores for receiving` cartridges, andprovided in its surface with a series of longitudinal grooves ordepressions which drum is placed into the revolver frame and engages arecessed plate which is rotated by cooking the revolver.

In the accompanying drawings, Figure l is a side view of my improvedrevolver closed ready for ring. Fig. 2 is a similar View showing therevolver open for removing the removable cylinder, parts being brokenout. Fig. 3 is a front end view of the removable cylinder, and Fig. 4 isa front view of the recessed plate.

Similar letters of reference indicate corresponding parts.

The barrel of my improved revolver is hinged to the frame A in such amanner that it can be swung down into the position shown in Fig. 2, andwhen raised, the barrel can be looked in place by a spring latch C. Atthe breech end of the barrel a guide-pin G is arranged that ts into acentral aperture of a removable cylinder D provided with longitudinalgrooves or depressions in its circumference, and with a series oflongitudinal bores for receiving the cartridges. The rear end of thecentral aperture of the cylinder 1s engaged by a guide-pin E projectingfrom the front face of a plate B mounted to turn in the revolver-frame,which plate B is provided in its front with a recess of sufficient sizefor receiving the rear-end ot the cylinder D, and with holes B thatservo for the passage of the striking-pin F of the hammer H. The plate Bis provided in its rim with the usual stop-notches J.

A number of cylinders D can be filled with cartridges so as to formmagazines and when it is necessary t0 reload the revolver, the barrel isswung down, the empty cylinder D is removed and replaced by a lledcylinder, the barrel is swung up and looked in place, the pin G passinginto the front end and the pin E into therear-end of the centralaperture of the cylinder. As the rear-end ot' the cylinder has beenplaced in the recess inthe front of the plate B, said cylinder iscompelled to rotate with said plate B when the same is rotated bycooking the revolver or pulling the trigger.

I am aware that revolvers have been oonstruoted with cartridge holdingcylinders, that could be removed for loading or oleaning, but thesecylinders were all provided at the rear end with a mechanism, such as aratchet-wheel or an analogous device for rotating them either by cookingthe revolver or pulling the trigger. In my improved revolver thecylinders are not provided with any such devices whatever and consistsimply of a cylindrical block having longitudinal bores for receivingthe cartridges and constructed alike at both ends, and havinglongitudinal grooves or depressions. My improved revolver has however arotating plate, that permanently remains in the revolver and which isrotated by cooking the revolver or pulling the trigger and which servesto receive the rear-end of the cylinder D. It is evident that by havinga supply of such filled cylinders at hand the revolver can be reloadedvery rapidly by simply swinging down the barrel and putting in place thefilled cylinder and then raising and locking the barrel again.

Having thus described my invention, I claim as new and desire to secureby Letters Patentc A revolver, constructed with a rotating plate infront of the hammer which plate is provided in its front-face with arecess and a center-pin, a removable cartridge-holding In testimony thatI claim the foregoing as cylinder having longitudinal grooves, and myinvention I have signed my name in presadapted to fit into said recess,the cylinder ence of two subscribing witnesses.

being provided with a central aperture, a JEAN LAMM. hinged barrel,provided with a pin below the Vitnesses:

breech, and means for locking the barrel to FRANZ HASSLAUHER,

the stock, substantially as set forth. MAX. HASSELMANN.

